ATCP 40.10(5)(a)(a) A zero shall precede the decimal point in every guarantee that is less than one percent. ATCP 40.10(5)(b)(b) A minimum guarantee for a primary plant nutrient shall be stated as a whole number if the guarantee is at least 1.0%. ATCP 40.10(6)(a)(a) If a guaranteed analysis identifies any chemical form of a plant nutrient that has more than one chemical form, it shall identify all chemical forms of the plant nutrient and provide a percentage guarantee for each. The percentage guarantee for each chemical form shall precede the identified chemical form and may include non-zero decimal units. Subsection (3) illustrates the correct format for nitrogen. ATCP 40.10(6)(b)(b) A chemical form under par. (a) may have a percentage guarantee of zero, provided that the combined guarantee for all chemical forms of the plant nutrient equals or exceeds the minimum guarantee required under sub. (2). ATCP 40.10(6)(c)(c) No person may represent that a fertilizer contains an organic or slowly released plant nutrient unless all of the following apply: ATCP 40.10(6)(c)1.1. The guaranteed analysis lists slowly released chemical forms of that plant nutrient. ATCP 40.10(6)(c)2.2. The combined guarantees for slowly released forms of the plant nutrient comprise at least 15% of the total guarantee for that plant nutrient, except as otherwise provided for nitrogen under sub. (8) (b). ATCP 40.10(7)(a)(a) A fertilizer label may contain a separate written statement, not part of the guaranteed analysis, which states that the amount of a specified plant nutrient or other substance does not exceed a specified percentage by weight of the fertilizer. ATCP 40.10(7)(b)(b) No person may sell or distribute a fertilizer for use on tobacco unless its label states the maximum amount of chlorine that may be present in the fertilizer. ATCP 40.10(8)(a)(a) A nonagricultural fertilizer label shall guarantee the ammoniacal, nitrate, water insoluble, and other chemical forms of nitrogen, as illustrated in sub. (3). ATCP 40.10(8)(b)(b) No fertilizer label may identify nitrogen as organic unless the water insoluble or slow release nitrogen guarantee is at least 60% of the non-urea nitrogen designated as organic. ATCP 40.10(9)(a)1.1. No fertilizer labeling may identify phosphite or phosphorous acid as a fertilizer ingredient. ATCP 40.10(9)(a)2.2. No phosphate nutrient guarantee may include any phosphate derived from phosphite or phosphorous acid. ATCP 40.10(9)(b)(b) Paragraph (a) does not prohibit the identification, in a fertilizer–pesticide combination, of a pesticide containing phosphite or phosphorous acid. ATCP 40.10(10)(10) Fertilizer-additive combinations. The guaranteed analysis for a fertilizer-additive combination shall be in the format shown in Appendix A. Enhancing nutrients other than cobalt and sodium, if claimed, shall be guaranteed as soil or plant additive active ingredients. ATCP 40.10 NoteNote: See definitions of “enhancing element” and “fertilizer-additive combination” in s. ATCP 40.02 (7) and (9). ATCP 40.12(1)(1) Permit required. Except as provided in sub. (2), no person may distribute a mixed fertilizer for which the sum of the primary plant nutrient guarantees totals less than 24% unless one of the following applies: ATCP 40.12(1)(a)(a) The distribution is for special agricultural uses, pursuant to a permit under sub. (4). ATCP 40.12(1)(b)(b) The distribution is for nonagricultural uses, pursuant to a permit under sub. (5). ATCP 40.12(2)(2) Exemptions. Subsection (1) does not apply to any of the following: ATCP 40.12(2)(a)(a) A fertilizer labeled with the statement “for further manufacturing use only” and distributed to licensed fertilizer manufacturers who use the fertilizer only for further manufacturing.